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The rapid expansion of the global microgrid (MG) market requires a sustainable and resilient energy storage solution to manage the intermittent nature of renewable energy sources. While conventional battery storage systems are common, they present significant limitations in cost, lifespan, and environmental impact. This paper introduces green hydrogen energy storage (GHES) as a paradigm-shifting a

Time-domain induced polarization (TDIP) data carry spectral information that can be used for petrophysical interpretation. At the same time, TDIP data can be collected in the field more efficiently than frequency-domain induced polarization (FDIP) data, thanks to the use of square-wave signals. However, TDIP field data are prone to noise, particularly strong near industrial installations and urban

Ouagadougou is a city with three million inhabitants and an increasing demand for water of sufficient quality. New boreholes are drilled to match demand, but their protection from anthropogenic contamination is insufficient. To assess the quality of urban groundwater in Ouagadougou for the first time, a total of 32 borehole water samples were collected and assessed for bacteriological and physicoc

Background: Parathyroidectomy is typically curative for primary hyperparathyroidism (PHPT) and may lead to health-related quality of life (HRQL) improvements. We aim to evaluate general and disease-specific HRQL changes in patients undergoing surgery for PHPT from their perspective. Methods: Patients completed three patient-reported outcome measure (PROM) surveys before and after surgery: (1) Worr

John Maynard Keynes was nominated for the Nobel Peace Prize in the 1920s for writing “The Economic Consequences of the Peace”. Yet, despite being highly ranked by the advisor of the Nobel Committee and placed on the shortlist, he did not win. This column brings out previously unused archival material from the Nobel Committee in Oslo to explore why. The Committee tended to withhold the Prize when c

Liquid-phase ammonia, a carbon-free alternative fuel, is increasingly being considered for improving overall efficiency, reducing system complexity, and lowering costs across various thermal applications such as engines, gas turbines, and burners. However, the physical properties of ammonia are far from usual carbon-based fuels as it is prone to flash boiling upon injection. Therefore, experimenta

Modern solid-state klystron modulators generate high-voltage, high-power pulses by discharging energy stored in a capacitor bank. Such modulators require at least one capacitor charging unit supplying the energy released in pulsing. Traditional capacitor charging structures rely on AC/DC front-end units based on passive diode rectifiers in conjunction with high-frequency resonant converters. Howev

To generate the required antiproton beam intensity for the FAIR PANDA experiment, a dedicated proton LINAC (pLINAC) for the FAIR accelerator chain is being constructed. Klystron modulators are power converters within the high-power RF system of the pLINAC. Here, seven modulator systems with a nominal pulse power amplitude of 115 kV / 54 A, an effective pulse width of 360 µs and a pulse repetition

Martian carbonate-bearing rocks are compelling targets for exploration because they preserve detailed records of past aqueous processes, climate, and habitability. The Margin unit in Jezero crater is a distinct olivine- and carbonate-bearing unit stratigraphically underlying the western fan, lining the inner margin of the western crater rim and has a contested origin. Perseverance spent ∼350 sols

Objective: In primary health care in southern Sweden, interprofessional medication reviews are conducted, to a limited extent, for patients living independently, with the purpose of optimising their pharmacological treatment. These medication reviews have identified and addressed many important issues regarding the patients’ medication. However, there is limited knowledge regarding the participati

Conversational agents are increasingly being introduced in healthcare to enhance access to healthcare and address limited healthcare resources. The aim of this study was to explore experiences of a conversational agent for symptom checking and triage tool assessing the urgency and appropriate level of care implemented in public healthcare from a cognitive accessibility perspective. With a Particip

Methane is a powerful greenhouse gas and growing concern regarding global climate changes over the last years has pointed out the need to quantify and control the leaking of methane into the atmosphere. Landfill gas is regarded as one of the major sources for methane migration to the atmosphere. In this study we present research work with the objective to evaluate the use of geoelectrical resistiv

Tests were done measuring resistivity and time domain induced polarisation using standard multi-core cable spreads and a special layout with separate cable spreads for transmitting current and measuring potentials. For both types of cables spreads both normal and reciprocal measurements were done in order to estimate the measurement errors. The tests were done along a planned tunnel stretch outsid